An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Niu H, Xiong Q, Yamamoto A, Hayashi-Nishino M, Rikihisa Y.Niu H, et al.Proc Natl Acad Sci U S A. 2012 Dec 18;109(51):20800-7. doi: 10.1073/pnas.1218674109. Epub 2012 Nov 28.Proc Natl Acad Sci U S A. 2012.PMID: 23197835Free PMC article.